Poly Backpack With Brass Hand Pump

The all-new WATERAX OT-4NX is a modernized poly backpack pump that was conceived with the comfort and safety of the user in mind.

The tank is made of lightweight yet rugged UV-resistant polyethylene making it easier to carry without compromising on durability. Ergonomics can be felt through the sleek contours of the tank, the integrated lumbar support, and the comfortable shoulder straps. The robust carrying handle makes for easy lifting and also serves as a port where the hand pump can be neatly docked. The large diameter filler neck allows convenient filling, cleaning access, and features a filler strainer to capture and prevent unwanted particles from entering the hand pump’s water supply.



L x W x H: 8.46 x 15.8 x 22.8


Weight: 8.5 lbs (3.8 kg)
Wet Weight: 52.6 lbs (23.9 kg)
Dry Weight: 8.5 lbs (3.8 kg)


5.3 US gal (20 L)



Made of UV and corrosion resistant polyethylene
Integrated lumbar support
Durable brass elbow fitting for hose connection to tank
Carry handle also functions as storage for the pump
Comfortable shoulder straps
Water level indicators (US Gallons & Liters)
Resistant to UV and ozone
Integrated lombar Support

Hand Pump:

All brass & stainless steel construction
“Sturdy and ergonomic nylon rear
pistol grip”
Grooved forward rubber grip
“Dual nozzle allows for quick switch
from stream to spray”
Easily reparable in the field
Locking feature
D-ring for clipping to shoulder straps